import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

/* Layout */
import Layout from '@/layout'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/register', '/auth-redirect'] // no redirect whitelist

export function filterAsyncRoutes(asyncRouterMap) {
  const accessedRouters = asyncRouterMap.filter(route => {
    if (route.component) {
      if (route.component === 'Layout') {
        route.component = Layout
      } else {
        // route.component = import('@/views/' + route.component + '.vue')
      }
    }
    if (route.children && route.children.length > 0) {
      route.children = filterAsyncRoutes(route.children)
    }
    return true
  })
  return accessedRouters
}

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()
  if (hasToken && whiteList.indexOf(to.path) === -1) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/login' })
      NProgress.done()
    } else {
      const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasRoles) {
        next()
      } else {
        try {
          await store.dispatch('user/getInfo')
          router.addRoutes(store.getters.permission_addRoutes)
          router.addRoutes([{ path: '*', redirect: '/NotFound' }])
          next({ ...to, replace: true })
        } catch (error) {
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
